<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  <input type="text" placeholder="请输入1—100之间的整数" v-model="num">
  <input type="button" value="猜一猜" @click="f()">
  <h3>结果:{{result}}</h3>
</div>
<script src="js/vue.min.js"></script>
<script>
  let x = parseInt(Math.random() * 100) + 1;
  console.log(x);
  let n = 0;
  let v = new Vue({
    el:"body>div",
    data:{
      num:"", result:""
    },
    methods:{
      f() {
        n++;
        if(isNaN(v.num)) {
          v.result = "输入有误!"
          return;
        }
        if(v.num > x) {
          v.result = "猜大了!"
        }else if(v.num < x) {
          v.result = "猜小了!"
        }else {
          v.result = "恭喜你, 第" + n + "次猜对了!"
        }
      }

    }

  })
</script>
</body>
</html>